Aachi Foods Maintenance Engineer Interview Questions and Answers

Q1. About current job profile
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Q2. About family , company, job profile
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Q1. About family and work experience
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Q1. What is control system What is process control
Ans. 
Control system is a system that manages, commands, directs or regulates the behavior of other devices or systems.
• Control system is used to manage and regulate the behavior of other devices or systems

• It involves the use of sensors, actuators, and controllers to maintain a desired output

• Examples include HVAC systems, traffic lights, and industrial automation systems

• Process control is a type of control system that is used...read more
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Q1. Salary expectation , working experience, your next plan
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Q1. Technical Questions
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Q1. Asked about my self
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Q1. Explain completed details of Errection & Comissining of Pneumatic Compressor?
Ans. 
Erection and commissioning of a pneumatic compressor involves assembling the components, connecting the necessary piping, testing for functionality, and fine-tuning for optimal performance.
• Assemble the components of the pneumatic compressor according to the manufacturer's instructions.

• Connect the necessary piping for air intake, compression, and output.

• Test the compressor for functionality by running it empty and check...read more
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Q2. How to calculate blowdown of cooling tower? What are the maintenance practice followed in maintenance efficiency of cooling tower? How to calculate capacity of cooling tower?
Ans. 
Blowdown of cooling tower can be calculated using cycles of concentration. Maintenance practices include regular cleaning, inspection, and water treatment. Cooling tower capacity can be calculated based on heat load and design parameters.
• Calculate blowdown using cycles of concentration formula: Blowdown = Evaporation Loss / (Cycles of Concentration - 1)

• Maintenance practices include regular cleaning of cooling tower fil...read more
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Q3. Explain RCM in detail ?
Ans. 
RCM stands for Reliability Centered Maintenance, a proactive maintenance strategy focused on identifying and preventing equipment failures.
• RCM is a systematic approach to maintenance planning that aims to optimize maintenance tasks to ensure equipment reliability.

• It involves analyzing the functions and potential failure modes of equipment to determine the most effective maintenance strategies.

• RCM prioritizes maintenanc...read more
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Q4. Classify pumps on the basis of casings ?
Ans. 
Pumps can be classified based on their casings as follows: volute casing, axial split casing, and radial split casing.
• Volute casing pumps have a spiral-shaped casing that gradually expands to the discharge outlet.

• Axial split casing pumps have a casing split along the horizontal centerline of the pump.

• Radial split casing pumps have a casing split along the vertical centerline of the pump.
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Q5. Explain the working principle of Air compressor ?
Ans. 
Air compressor works by compressing air to increase its pressure and decrease its volume.
• Air is drawn into the compressor through an intake valve.

• The air is then compressed using a piston or rotating impeller.

• Compressed air is stored in a tank or released directly for use.

• Examples of air compressors include reciprocating, rotary screw, and centrifugal compressors.
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Q1. Life cycle in angular,component communication,Directives ,component
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Angular life cycle, component communication, directives, and components are key concepts in Angular development.
• Angular life cycle includes ngOnChanges, ngOnInit, ngDoCheck, ngOnDestroy, etc.

• Component communication can be achieved using @Input, @Output, services, or event emitters.

• Directives in Angular are used to add behavior to DOM elements.

• Components are the building blocks of Angular applications, each representing...read more
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Q2. Basic javascript Queastion
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Q1. Normal and expected HR rounds
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Q1. Tell me about yourself
Ans. 
I am a Senior Engineer with 10+ years of experience in software development, specializing in backend systems and cloud technologies.
• 10+ years of experience in software development

• Specialize in backend systems and cloud technologies

• Strong problem-solving skills

• Experience with large-scale projects

• Proficient in multiple programming languages
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Q2. Technical background and experience
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Basic programing questions and aptitude related questions like speed/time, age questions. Duration was 30 mins.

Basic String related questions like arranging strings, occurrence etc

Q1. Programming question, projects worked on, interests etc
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Q1. What is your family background?
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Q2. What are your strengths and weaknesses?
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Q3. Tell me about yourself.
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